<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
<script>
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    /* 标准的语法 */
    font: 100% PingFang SC, Verdana, Helvetica Neue, Microsoft Yahei, Hiragino Sans GB, Microsoft Sans Serif, WenQuanYi Micro Hei, sans-serif;
    /*居中页面*/
    width: 45em;
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h1,
h2 {
    /* ********** BEGIN ***********/
    font-family:PingFang SC, Verdana, Helvetica Neue, Microsoft Yahei, Hiragino Sans GB, Microsoft Sans Serif, WenQuanYi Micro Hei, sans-serif;
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h1 {
    /* ********** BEGIN ***********/
    font-size: 2.1875em;

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h2 {
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    /* ********** BEGIN ***********/
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     font-size: 1.75em;
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h3 {
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    /* ********** BEGIN ***********/
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    /* ********** END ************/
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hr {
    height: 1px;
    border: none;
    border-top: 2px dashed #88b2d2;
}

footer {
    margin: 10px auto;
}

/* CONTENT
----------------------------------- */

.architect {
    background-color: #fff;
    padding: 1.5em 1.75em;
}

/* :::: Intro ::::: */

.intro {
    background-color: #888888;
    /* ********** BEGIN ***********/
    color: #fefefe;
    /* ********** END ************/
    padding: 1px 1.875em .7em;
}

.intro .subhead {
    /* ********** BEGIN ***********/
    font-size: 1.125em;
    /* ********** END ************/
}

.intro p {
    font-size: 1.0625em;
}

/* :::: chapter Descriptions ::::: */

.chapter p {
    font-size: .9375em;
}

img {
    border-radius: 8px;
}

/* :::: Links :::: */

a:link {
    color: #e10000;
}

a:visited {
    color: #b44f4f;
}

a:hover {
    color: #f00;
}

.intro a {
    color: #fdb09d;
}

.intro a:hover {
    color: #fec4b6;
}
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</html>